Everyday Maths Practice Worksheet

Quantitative aptitude lesson 20: Practice: everyday maths · Set 974 · 40 questions

The method (Find the 100%): Name the topic and write its formula. For percent questions, decide which value is the 100%. Check units (₹, km/h, days) and whether the answer is sensible.

1. 1.A water tank holds 2220 litres. 50% of the water is used. How many litres are left?
2. 2.Change 36 km/h into metres per second.
3. 3.Kabir cycles to his school at 10 km/h and comes back by the same road at 15 km/h. What is his average speed for the whole trip (in km/h)?
4. 4.Marks of 4 friends in a quiz: 39, 47, 53, 41. What is their average mark?
5. 5.Diya can finish a job in 24 days and Manav in 20 days. Diya works alone for 12 days and then stops. Manav finishes the rest. How many days does Manav take?
6. 6.4 years ago, Sneha’s mother was three times as old as Sneha. The mother is 37 years old now. How old is Sneha now?
7. 7.Change 15 m/s into km/h.
8. 8.The average of 9 numbers is 56. When one more number is added, the average becomes 61. What number was added?
9. 9.By selling a pressure cooker for ₹1562, a shopkeeper makes a profit of 10%. What did the pressure cooker cost the shopkeeper (in ₹)?
10. 10.A car runs for 1 hour at 76 km/h and then for 2 hours at 34 km/h. What is its average speed for the whole journey (in km/h)?
11. 11.Marks of 6 friends in a quiz: 92, 96, 78, 99, 77, 74. What is their average mark?
12. 12.Find the simple interest on ₹8500 at 9% per year for 2 years (in ₹).
13. 13.Diya puts ₹5000 in a bank at 12% simple interest per year. How much will she have after 2 years (in ₹)?
14. 14.A shop sells an average of 32 kg of sugar a day for 6 days, and then 53 kg a day for the next 3 days. What is the average sale per day for all 9 days (in kg)?
15. 15.A price goes up by 30% and then comes down by 15%. By what percent has it gone up in all? =
16. 16.The average of 9 numbers is 44. When one more number is added, the average becomes 47. What number was added?
17. 17.Meera’s batting average after 11 innings is 26 runs. How many runs must Meera score in the next innings to raise the average to 29?
18. 18.Isha is 4 years older than Zoya. In 5 years, the sum of their ages will be 34. How old is Zoya now?
19. 19.Rohan’s father is three times as old as Rohan. The sum of their ages is 36 years. How old is Rohan?
20. 20.Two discounts of 25% and 25%, one after the other, are the same as one discount of what percent? =
21. 21.Kabir cycles to his school at 28 km/h and comes back by the same road at 21 km/h. What is his average speed for the whole trip (in km/h)?
22. 22.By selling a pressure cooker for ₹984, a shopkeeper makes a profit of 20%. What did the pressure cooker cost the shopkeeper (in ₹)?
23. 23.A price goes up by 5% and then goes up by 10% more. By what percent has it gone up in all? =
24. 24.Diya is 2 years older than Aarav. In 8 years, the sum of their ages will be 36. How old is Aarav now?
25. 25.9 years ago, Meera’s mother was four times as old as Meera. The mother is 57 years old now. How old is Meera now?
26. 26.Ananya is 3 years older than Diya. In 3 years, the sum of their ages will be 51. How old is Diya now?
27. 27.What is the difference between the compound interest and the simple interest on ₹400 at 20% per year for 2 years (in ₹)?
28. 28.Ishaan is 7 years older than Sneha. In 6 years, the sum of their ages will be 73. How old is Sneha now?
29. 29.A price goes up by 15% and then goes up by 5% more. By what percent has it gone up in all? =
30. 30.After a 40% discount, a school bag costs ₹1452. What was its marked price (in ₹)?
31. 31.Find the amount when ₹8000 is invested at 15% per year compound interest for 3 years (in ₹).
32. 32.Arjun can finish a job in 10 days and Vivaan in 15 days. How many days will they take working together? Give a fraction if the answer is not a whole number. =
33. 33.A shop sells an average of 29 kg of sugar a day for 3 days, and then 37 kg a day for the next 5 days. What is the average sale per day for all 8 days (in kg)?
34. 34.5 years ago, Meera’s mother was three times as old as Meera. The mother is 17 years old now. How old is Meera now?
35. 35.In 9 years, Aarav will be twice as old as Aarav was 4 years ago. How old is Aarav now?
36. 36.In how many years will ₹12300 earn ₹3936 as simple interest at 8% per year?
37. 37.A shop sells an average of 74 kg of sugar a day for 6 days, and then 50 kg a day for the next 6 days. What is the average sale per day for all 12 days (in kg)?
38. 38.Manav and Aditya together finish a job in 10 days. Manav alone takes 12 days. How many days would Aditya take alone?
39. 39.Nisha’s batting average after 6 innings is 46 runs. How many runs must Nisha score in the next innings to raise the average to 47?
40. 40.Diya can finish a job in 12 days and Vivaan in 16 days. How many days will they take working together? Give a fraction if the answer is not a whole number. =

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